Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 756 · 40 questions

Remember (Shape tells the part): Cell: long and short line (long = +). Battery: two or more cells. Wire: straight line. Junction: a dot. Bulb: circle with a cross. Switch: line lifted at a gap. Resistor: rectangle. Capacitor: two equal parallel lines. Diode: triangle against a bar; LED: the same with two arrows out. Circle with M = motor, A = ammeter, V = voltmeter.

1. 1.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) one tall, one short bar (c) a circle with V inside (d) two equal parallel lines
2. 2.True or false: a circle with an X in it is the symbol for a capacitor. (a) True (b) False
3. 3.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) a long and a short line (c) triangle, bar and arrows (d) a circle with a cross
4. 4.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) switch (c) LED (d) battery
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
6. 6.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) wire (c) diode (d) voltmeter
7. 7.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
8. 8.True or false: a circle with V inside is the symbol for a switch. (a) True (b) False
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
10. 10.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) bulb (c) LED (d) capacitor
11. 11.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) bulb (c) junction (d) voltmeter
13. 13.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
14. 14.True or false: many long-short pairs is the symbol for a diode. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) switch (c) LED (d) capacitor
16. 16.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
17. 17.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
18. 18.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) two or more cell symbols (c) a circle with an X in it (d) a small empty box
19. 19.True or false: a straight line is the symbol for a motor. (a) False (b) True
20. 20.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) two or more cell symbols (c) a long and a short line (d) a dot where wires meet
21. 21.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) ammeter (c) battery (d) cell
22. 22.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a plain rectangle (c) a long and a short line (d) a circle with a cross
23. 23.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) diode (c) battery (d) cell
25. 25.Which drawing is the symbol for a wire? (a) a straight line (b) triangle against a bar (c) triangle, bar and arrows (d) many long-short pairs
26. 26.True or false: a straight line is the symbol for a wire. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) voltmeter (c) motor (d) capacitor
28. 28.True or false: a line lifted at a gap is the symbol for a diode. (a) False (b) True
29. 29.True or false: a dot where wires meet is the symbol for a wire. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) resistor (c) ammeter (d) diode
31. 31.True or false: a circle with M inside is the symbol for a diode. (a) True (b) False
32. 32.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a long and a short line (c) triangle against a bar (d) a dot where wires meet
33. 33.Which drawing is the symbol for a motor? (a) a line lifted at a gap (b) a circle with M inside (c) two or more cell symbols (d) many long-short pairs
34. 34.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) switch (c) resistor (d) LED
35. 35.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) junction (c) cell (d) battery
36. 36.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) junction (c) ammeter (d) cell
37. 37.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) diode (c) ammeter (d) capacitor
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) battery (c) junction (d) cell
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) wire (c) battery (d) ammeter

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